内构件移动床固体热载体油页岩热解技术  

Oil shale pyrolysis by solid heat carrier in internal-structured moving bed

作　　者：赖登国 战金辉[1] 陈兆辉[2] 韩振南 武荣成[1] 许光文[1,3] 

机构地区：[1]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190 [2]清华大学化学工程系,北京100084 [3]沈阳化工大学能源与化工产业技术研究院,辽宁沈阳110142

出　　处：《化工学报》2017年第10期3647-3657,共11页CIESC Journal

基　　金：国家重点基础研究发展计划项目(2014CB744303)~~

摘　　要：从化学反应工程角度分析了小颗粒油页岩热解技术存在的共性问题和初级热解与二次反应的关系,提出了定向调控热解产物流动及其与挥发分反应匹配的方法。针对小颗粒油页岩热解制备高收率和高品质页岩油的技术需求,创新性地提出了内构件移动床固体热载体油页岩热解技术,通过内构件调控热解挥发分在反应器内的流动,实现热解油气原位过滤除尘和选择性裂解提质,以解决现有固体热载体热解技术长期面临的所产页岩油中含尘量高、重质组分高和油收率低等问题。建立了10 kg·h^(-1)内构件移动床固体热载体油页岩热解模式装置,验证了新工艺的可行性和先进性,展示出良好的技术应用前景。From a chemical reaction engineering point of view, the relationship between primary pyrolysis and secondary reactions of small-size oil shale pyrolysis technologies was analyzed. A novel method was proposed to regulate pyrolysis volatiles to flow in an expected direction and to match their secondary reactions to flow/transfer fields in the reactor. A new technology of solid heat carrier pyrolysis was further developed on moving bed reactor with particularly designed internals to overcome challenges for small-size oil shale pyrolysis, including low oil yield, high contents of dust, and heavy components. In such internal-structured moving bed reactor, pyrolysis volatiles flew laterally across particle bed in order to realize in-bed dust removal via filtering and in-situ oil upgrade through ash-involved selective secondary reactions. A 10 kg·h^-1 laboratory setup built to assess the new solid heat carrier pyrolysis technology adopting internal-structured moving bed showed shale oil product at high yield and high quality from small-size oil shale. The results presented a good application prospective of the proposed pyrolysis reactor and process.

关 键 词：油页岩 热解 二次反应 内构件 移动床 固体热载体 

分 类 号：TQ519[化学工程]